Xtralite Rooflghts

Daylight in Perspective

Industry Bodies

Standard Rooflights

Specialist Glazing

Guide Sizes (mm)
Square	Rectangular		Circular (Diameter)	Barrel Vaults (Width)
600 x 600	600 x 900	900 x 1800	600	600
750 x 750	600 x 1200	900 x 2400	900	900
900 x 900	600 x 1500	1000 x 1500	1200	1200
1000 x 1000	600 x 1800	1000 x 2000	1500	1500
1200 x 1200	600 x 2400	1200 x 1500	1800	1800
1350 x 1350	900 x 1200	1200 x 1800	000	2100
1500 x 1500	900 x 1350	1200 x 2400	000	2400
1800 x 1800	900 x 1500	1800 x 2400	000	000
1050 x 1050	000	000	000	000

Shape

The specification decision regarding shape is mainly a personal viewpoint though the following should be considered:

Pyramids tend to be less likely to suffer from vandalism as they are difficult to climb on.
In the main, circular/dome rooflights are used in conjunction with curved roofs and pyramids with angular roofs.


Dome XL 102	Pyramid XL 100	Circular XL 102 c	Hexagonal XL 104

Northlight Wedge XL 107	Hemispherical XL 253	Thermoformed Barrel Vault XL 101	Continuous Pyramid XL 100 c

Clear

Bronze

Diffused

High light transmission.

Light glare inside the building can be a consideration on sunny days.

Can look dirty from below if not cleaned regularly.

Allows full vision of views and objects.

Reduces solar heat gain.

Reduces light transmission into a building.

Maximises privacy.

Good light transmission into a building.

Diffuses light transmission and so avoids glare and shadows.

Prevents vision of views and objects.

Opal available as an option

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